LiftMaster RSW12V RSW12V Install Manual - Page 29

OPERATION AND MAINTENANCE » MAINTENANCE + BATTERY MAINTENANCE Disconnect all power to the operator before servicing. DESCRIPTION External Entrapment Protection System Photoelectric Sensors Warning Signs Manual Disconnect Sprockets and Chains Gate Accessories Electrical Chassis Mounting Bolts Operator Batteries TASK Check and test for proper operation Check and test for proper operation Make sure they are present Check and test for proper operation Check for excessive slack and lubricate Inspect for wear or damage Check all for proper operation Inspect all wire connections Check for tightness Inspect for wear or damage Replace MONTH X X X X CHECK AT LEAST ONCE EVERY 6 MONTHS 3 YEARS X X X X X X X NOTES: • Severe or high cycle usage will require more frequent maintenance checks. • It is suggested that while at the site voltage readings be taken at the operator. Using a digital voltmeter, verify that the incoming voltage to the operator it is within ten percent of the operator's rating. BATTERY The battery should be replaced every three years. Use only LiftMaster part 29-NP712 for replacement batteries. The operator comes with one 7AH battery. A second 7AH (29-NP712) battery may be added or one 33AH (A12330SGLPK) may be used in place of the 7AH batteries. The batteries contain lead and need to be disposed of properly. 28